Latest Facebook Messenger 249 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; ZB633KL Build/WW_Phone-202010301040; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.119 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 ZenFone Max M2
Mozilla/5.0 (Linux; Android 9; SM-J400F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.119 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Galaxy J4
Mozilla/5.0 (Linux; Android 9; SM-A750GN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Galaxy A7 (2018)
Mozilla/5.0 (Linux; Android 9; SM-A205F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/78.0.3904.90 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Galaxy A20
Mozilla/5.0 (Linux; Android 9; SM-A105G Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Galaxy A10
Mozilla/5.0 (Linux; Android 9; Redmi Note 8 Pro Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Redmi Note 8 Pro
Mozilla/5.0 (Linux; Android 9; Redmi Note 7 Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.93 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Redmi Note 7
Mozilla/5.0 (Linux; Android 9; Redmi 7 Build/PKQ1.181021.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.119 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Redmi 7
Mozilla/5.0 (Linux; Android 9; Redmi 7 Build/PKQ1.181021.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Redmi 7
Mozilla/5.0 (Linux; Android 9; POCOPHONE F1 Build/PKQ1.180729.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.157 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Pocophone F1
Mozilla/5.0 (Linux; Android 9; Mi A1 Build/PKQ1.180917.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Mi A1
Mozilla/5.0 (Linux; Android 9; LM-X420 Build/PKQ1.190302.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.93 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 K40
Mozilla/5.0 (Linux; Android 9; JKM-LX2 Build/HUAWEIJKM-LX2; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/81.0.4044.138 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 Y9 (2019)
Mozilla/5.0 (Linux; Android 9; HTC_U-3u Build/PQ2A.190205.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.87 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 U11
Mozilla/5.0 (Linux; Android 9; FIG-LX1 Build/HUAWEIFIG-L31; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/78.0.3904.90 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 P smart
Mozilla/5.0 (Linux; Android 9; CPH1969 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 9 F11 Pro
Mozilla/5.0 (Linux; Android 8.1.0; SM-G610F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.93 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 8 Galaxy J7 Prime
Mozilla/5.0 (Linux; Android 8.1.0; SM-G610F Build/M1AJQ; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 8 Galaxy J7 Prime
Mozilla/5.0 (Linux; Android 8.1.0; Redmi 6A Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0.0.10.122;] Android 8 Redmi 6A
Mozilla/5.0 (Linux; Android 8.1.0; Redmi 5 Plus Build/OPM1.171019.019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/249.0. Android 8 Redmi 5 Plus